APPLE HAS ROLLED OUT iOS 7.1.2 to iPhones and iPads, which brings with it a handful of security updates.

Chief among these security updates is a fix for a bug that allowed a hacker to "potentially bypass Activation Lock" - Apple's take on the Kill Switch that automatically bricks an iPhone once it is reported lost or stolen on Find my iPhone.

The firm said in its release notes, "Devices were performing incomplete checks during device activation, which made it possible for malicious individuals to partially bypass Activation Lock. This issue was addressed through additional client-side verification of data received from activation servers."

"If a Siri request might refer to one of several contacts, Siri displays a list of possible choices and the option 'More...' for a complete contact list," Apple said. "When used at the lock screen, Siri did not require the passcode before viewing the complete contact list."

Beyond that, iOS 7.1.2 doesn't have much else that's new, other than improvements to iBeacon's connectivity and stability.